Catherine Palace built
1717 CE.
Shown on the map at 59.716°, 30.396°.
The Catherine Palace (Russian: Екатерининский дворец, romanized: Yekaterininskiy dvorets, IPA: [jɪkətʲɪˈrʲinʲɪnskʲɪj dvɐˈrʲets]) is a Rococo palace in Tsarskoye Selo (Pushkin), located 30 kilometres (19 mi) south of St. Petersburg, Russia. It was the summer residence of the Russian tsars. The palace is part of the World Heritage Site Saint Petersburg and Related Groups of Monuments.
Text from the Wikipedia article Catherine Palace, licensed CC BY-SA 4.0.